Ford Super Duty (1999-2016) :: Intermittent Stalls At Idle And Hard Start
Mar 24, 2014
As a follow up to my problem of intermittent stall and hard start, it is getting more pronounced. Now, every once in a while, it will start. Mostly it will not start.
This morning I connected an OBD2 meter with the key on and engine off. It told me that there are no DTC's. As I was attempting to run enhanced DTC's the code reader lost link with the computer. The connection icon was on but it lost the link. At one point, after several tries, I got the link back but it didn't last too long before it was lost again.
This is the same symptom that I have with running the engine. It will run and then shut off. After a hard start, it will start and run just fine and then shut off again.
My question is this. Can I still have power to the PCM and loose power to the processor? Is there a fuse or relay that could be causing this problem? If not, could the problem be a faulty PCM.
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1999 Ford Triton V-10 engine, after changing Oxygen sensors, all vacuum hoses and Mass airflow sensor,(also replaced another sensor but can't think of the name of it right now) now I don't get the codes but engine will start and idle but if I give the engine gas it bogs down and stalls. Vehicle sat in my driveway for 3 months, I got it started and drove it once about 30 miles filled up my gas tank thinking gas could be stale, but now it will not run.
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06 F250 6.0 with only 65,xxx miles on it. This has happened twice and both times the engine was warm and had been cut off for less than 10 min.. When I tried to crank it back up it stumbled and idle roughly then cut off. After several attempts to re-crank it still would idle rough and I tried to give it fuel but no change, even with pedal fully depressed. Then it would die.
After sitting a few minutes it starts normal. Both times I didn't have my obd2 adapter for my torque pro. The last time it happened I went home and hooked it up and got no codes. Everything looked fine. What could it be, where should I start looking. Batteries are1.5 years old. Oil, oil filter, and both fuel filter changed about 1000 miles back. I have had the truck for 1.5 years and the oil has been changed twice.
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I recently purchased this 2003 F350 DRW with the 7.3L, automatic trans. Truck has 140k on it. Three times now while the truck has been idling, the engine just died. The first time was a couple of weeks ago when I was pulling out of the driveway. Then again yesterday twice, once while just sitting at a stop sign. Each time it has started right up and ran fine.What is going on here?
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2002 Ford F350 Powerstroke, 7.3L, Automatic, 4 wheel drive .... AFE Stage II Intake, 5" full exhaust, TS 6-position tuner chip, Swamps 140lb injectors
Intermittent accelerator problem: no response, just goes to idle. Runs perfectly with no other issues but zero response when the accelerator it pressed. There seems to be no pattern to the problem as this happens at any speed/position on the pedal. When the accelerator goes out the check engine light in the lower left corner comes on. All fuses are good.
Symptoms began a month or so ago feeling like an occasional 'hiccup' or hesitation. Symptoms occurred a few more times until a couple of weeks ago (Friday, 2/20/15) when it left my son stranded a few miles from home. He was able to limp it to a parking lot and we left it over night and went and towed it back to the house the next morning. The truck started and ran fine just no accelerator so we towed it idling so we would have power steering/brakes, etc. As we neared the house the engine light went out and the accelerator began working and he was able to drive the truck the remaining 1/2 mile home.
Most all of the research I did came back with the Throttle Position Sensor as the culprit. I was able to order one (the complete accelerator pedal assembly that is*) at a Napa store in a nearby town and picked it up on Tuesday (2/24). As soon as I installed it everything worked fine.
As an aside, I have read a lot about the mid-2001 switch from the units with the TPS (Throttle Position Sensor) and IVS (Idle Validation Switch) as separately connected units to the 'new' style where these parts are combined into one and there is a single 5-wire connector. Being a 2002 there was no question as to which one I had. Just be aware of the difference. Also, this part is simple to change. The connector has a clip that you pinch down on with your thumb and then pull off. I use my little electric impact with 1/4" extension and a 10mm socket. Zip, zip, zip an you're done. It takes me longer to get my tools out.
A few days later on Friday (2/27) it presented the sporadic accelerator symptom a couple of times again but was able to get the truck home. The next morning I unplugged, cleaned (CRC Contact Cleaner), and dabbed into the connector a small amount of dielectric grease to insure good connection. (I had read that in my research as well). That seemed to work beautifully and he said it ran fine all day and until the next afternoon (Sunday, 3/1) when it began acting up yet again.
I continued to research and could find nothing that would suggest anything other than the Throttle Position Sensor. I read that some other folks had gone through a few of the Napa/aftermarket units though so I began thinking that maybe I had just gotten a bad unit.
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I have a 2005 Ford F-350 service truck,,it has a 5.4L 3V gas engine and has 159869 miles on it. No codes!! Truck starts,,idle races up to 900-1000 rpms and begins to drop to 5-600,,it will just bog or CHAAAAWWWWW if you touch the throttle,,let off and it will most times stall. It is unable to move the truck,,,,start it up and for a slit second it acts as it will rev up but fails and just goes CHAAAAAWWWWW out the intake. I just dont know where to turn on this deal,,Richie 1-774-406-7289 or [email protected].
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Let me start with I have a 2003 f250 5.4. The motor blew on my truck and I had a 100k motor dropped in it. I've put new spark plugs, ohmd out the coils. I tried both sets of injectors. cat delete and new fuel pump. It has rough idle and stalls but runs fine at higher rpms. Also has basically no brakes. I am thinking vacuum but I've check all the lines. No codes either!! also cleaned throttle body.
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My F53 motorhome has a rough idle and hard misfire but is not setting any codes. I've put new plugs in it and not change.
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I just bought this 99 f250 7.3 Powerstroke last week.. drove it all week fine, I car pool with a family member to work and asked his girlfriend to plug my truck in for me, well she didn't and it had stalled on the way home one morning but started up after cranking a few times i thought nothing of it. Drove it a little bit that day and it was fine, while I let it idle in my drive way as I prepared to go work it started running really rough then died. It took a long time to start again..now it's happening all the time. I changed the fuel filter and someones telling me there's air in the lines..
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Over the last two weeks I have had an intermittent no start on my 2005 F350 6.0. on four different occasions. With enough cranking and charging batteries it would start again. I am running a scangauge, during these no-starts ICP was at 200. I pulled the IPR and the screen was damaged so I ordered a new one thinking the IPR would fail intermittently. Replaced the IPR last night with a new one, and truck ran great. Started it three different times with no problems and let it run about twenty minutes.
This morning, another no-start, but IPR is at 1162 psi now during cranking. I am thinking fuel delivery now, but have not yet checked fuel pressure, I need to find an adapter for the M12-1.5 port on the secondary fuel filter.
Details: 2005 F350 6.0 SRW 150,000 miles 4x4
Studded a year ago
New oil cooler a year ago
Upgraded STC fitting a year ago
Coolant system flushed and coolant replaced with ELC months prior to cooler change
Coolant filter installed months prior to cooler change
EGR Delete
Scangauge II
Plenty of Oil
New Motorcraft Fuel Filters
Fuel Filter Bowl fills fast during KOEO
LPO registering on dash gauge during long crank
1162 PSI ICP during crank
37% IPR during crank
FICM voltage 48 - 47.5v during crank and run
Batteries tested good last week
SYC = 1 (last night while running)
Codes: Threw a code this morning during long crank "P2614 - Camshaft position output circuit" - One forum stated that this code will appear during long cranks - don't think this is my problem. This is the only code that it has kicked out during this issue.
Fuel Pressure = UNKNOWN
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I've been having an intermittent stall-out problem with my 2003 F250 5.4L (160k miles). The truck has been retired from DD to farm duty, hauling, and towing only. Over the past 9 months, the truck has stalled-out on me 3x while driving. I will be driving along sometimes at highway speed, sometime slower, and everything will die: no PS, lights go on all over the dashboard. It will not restart right away. I have to wait at least 20-30min to restart it and then everything is fine for several weeks and hundreds of miles.
There are no codes and I have been unable for reproduce it/cause it to happen purposely. My mechanic has changed the Crankshaft Position Sensor, and checked the fuel rail pressures. I also checked all the harnesses and fuses, cleaned the battery terminals, looked for vacuum leaks, and gave it a good look-over. The following are new: battery, IAC valve, fuel filter. After searching the forum I also pulled the fuse box and examined the integral fuel pump relay: it and the board looked perfect, no bulges, cracks, discoloration, etc.
My mechanic thinks this is more likely an ignition problem than a fuel delivery problem.
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1999 F250 SD Ex 4x4 V10 has been intermittently not starting, both cold and warm, began last fall but only happened once a month or so or longer. Would then start after trying again either right away or after waiting a bit. Now it is doing it on a regular basis. Sometimes it will start right away, sometimes won't but if you keep trying or wait awhile it starts, sometimes using the extra key will start it right away after the first one didn't, sometimes neither one. It does not try to turn over, make any noises, no warning lights flashing, just won't start.
Now also on two occasions within the past week, it just stopped while driving. Radio, dash lights, etc., stayed on. I got it to the side of the road with the little power steering left where it started up again right away.
No codes showed up. First mechanic couldn't find anything obvious or replicate problem. Changed air and fuel filters (fuel filter really needed changed), plugs. Got truck back and it wouldn't start next morning. He checked it again and got a code related to ignition, tried the spare key and it started up. Truck back home, next day same problem.
Mechanic 2 checked, no codes, kept several days but, of course, couldn't replicate problem. I'm not even sure what all they checked, used to be an excellent repair place but now they seem to only really on diagnostics and throw up their hands, very disappointing. Replaced solenoid and starter last year myself. Otherwise, have had no problems until this.
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Truck: 1999 Ford Truck F 350 4WD Super Duty V8-7.3L DSL Turbo VIN F
Problem: Especially when it is cold outside . . . The truck takes forever to start and while doing so a ton of white/grey smoke comes out of the exhaust.
My starting schema: Turn the key on have the gas pedal pushed to the floor until the "wait to start" light goes out. Then, I turn the key off and back on while still pressing the gas pedal all the way down. When the "wait to start" light goes out again I remove my foot from the pedal and try to start it. I never leave it cranking for more than 5-7 seconds. If, after trying this process several times I will not push the pedal in at all. Also, sometimes I will leave the pedal pushed in while I am cranking it over.
The truck used to start after a couple of tries but lately it won't start at all, even after 20 tries. Sometimes it will spin up for a second as if the engine gets going but then just doesn't continue running. When it is warm out it will usually start after a few tries but doesn't seem normal to me. After I first bought the truck(used) it would start up within half a second after turning the key.This all started after I had to fix an o-ring that was damaged on the top/back of the motor that was dumping all my oil out of the top/back of the motor.
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So, in my 99 Bounder RV (F53 chassis), V10
I think it has a 4R100 transmission in it (I have not verified this).
I had the oil and filter changed about 10K ago.
Runs and shifts fine .... then I stop and idle with it in gear (say stopped in traffic for a few minutes).
Now the thing shifts super hard! I actually get rubber in all gears.
So I pull over, shut it off. Restart the unit and everything is fine again.
It does this very consistently!
I went to the local transmission shop. They said with 110K in an RV it could be anything and I should think about letting them rebuild it.
Now that is something I would do ... not diagnose a problem and just rebuild it. I thought a "professional" would actually look for the problem first.
I don't want to rebuild the transmission if there is small item that will fix this.
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My steering got real "heavy" almost as if I had no power steering so I replaced the power steering pump. The steering got a little easier but is still very stiff. It's extremely hard to turn at low speed just off idle...I have to rev the engine a bit to get it to turn.This is on my 1999 7.3 f350...I've ran 33" and 35" tires on it it's whole life and this is the first PS pump I've replaced since 1999...never replaced the steering box.
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My '01 recently seized up and a buddy determined it was the AC pump. Replaced the belt with the bypass version. A month later, I moved across the state to Iowa. A couple weeks into living here I turned the truck on and it was idling really high (about 2500-3000) but would settle down to around 1100 when put in gear. However, shifting into gear is causing a progressively worse "jump" into gear. Hadn't really had the money or the time to take it in so I let it mostly sit unless I absolutely needed the truck.
Today, the idle is still high and does seem to cycle a bit in that it will rev up close to 3000 then settle back down around 2200 or so and then rev back up again and so on. I backed it down the drive into the sun for a little warmth and it darn near jumped a foot when I shifted. I turned the heater on defrost so I could clear the windshield and absolutely nothing came out.
I can't get into a garage for a few days to get it hooked up for diagnostics. So I thought I'd try here. My research leads me to think part of my problem may be a vacuum leak and/or maybe a sensor somewhere.
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Bought 02 350 DRW, started hard first day, now not cranking. Seen a post on neutral transmission switch and mine is not lining up, but need to adjust the rod out of transmission also? I was able to match lines on switch but with flanges on fitting it will move back out of place when moving it to fit in bolts.
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I've been having sporadic starting issues with my truck since the fall. I had the spark plugs changed but that did not work. The hard starts usually occur when the engine is hot....after filling gas or just running into the grocery store. The engine seems to turn over slowly the first try and won't start. The second or third try the engine turns over normally and the truck usually starts.
I just got back from a 90 minute drive and shut off the truck for 5 minutes and now it won't even turn over. My thought is that it can't be the battery....its been charging for 90 minutes. Headlights are strong, wipers work fast, fan blows hard. That being said I think alternator or battery can be ruled out?
Where do I look next? Starter? Is there a starter solenoid that could be defective?
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My '01 f250 7.3 has gotten hard to start. It seems to maybe be due to cooler weather, but not always. I have been told that there is some sort of valve in the fuel tank that could possibly cause this when the fuel gets around a 1/4 tank or so. But, it's doing it at any fuel level. But it doesn't do it all the time. I do notice it more in cooler weather. Anyway, when I try to crank it, I'll let the "wait to start" light go off and then wait a bit more. I'll turn it over and it almost as if the batteries are weak.
I'll stop and give it a few seconds and turn it again and it will normally start. But sometimes I'll do this 5 or 6 times and it will finally fire. But the more I have to try, it's like fuel builds in the cylinders and it smoke like a coal train for a minute or so. Almost like gas motor that has been flooded. But the smoke burns off and it runs like a top. I was thinking the batteries may be weak , but sometimes the starter will spin the motor with no trouble at all. I'm at a loss. Is it possible for fuel to drain from the system causing it to have to reprime itself? Here lately the smoking has me concerned even though it clears up.
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Recently purchased a 99 F250 SD w/ V-10 Triton which purrs like a kitten and drives great until I turn it off and then re-start. It has trouble re-starting and then when started and put in drive...won't go anywhere. Zero power. Oddly, in reverse it goes. Getting decent flow from exhaust. No vacuum leaks I can find. No check engine light on either. Strange.
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i have a f350 superduty with a 7.3 turbo diesel and I pretty much hafta keep it plugged in to get it to start, i have installed all new glow plugs and both relays have been changed and the problem is still there, only other option i have not tried yet was changing the pcm controller but unsure if that is the problem ..
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